system/xtrs: Fix window close button.

Signed-off-by: B. Watson <urchlay@slackware.uk>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

system/xtrs/README

@@ -9,6 +9,3 @@ density, and even hard disk drives.
 A simple xtrs.desktop file is included that will start xtrs with the
 default options. Read the included 'xtrs' man page after installation
 for more information and command-line options.
-
-Note for first-time users: press F8 to exit xtrs. The regular
-window-close button is non-functional.

system/xtrs/window_close.diff

@@ -0,0 +1,35 @@
+diff -Naur xtrs-4.9d/trs_xinterface.c xtrs-4.9d.patched/trs_xinterface.c
+--- xtrs-4.9d/trs_xinterface.c	2009-06-15 23:23:09.000000000 -0400
++++ xtrs-4.9d.patched/trs_xinterface.c	2023-05-17 15:31:29.237827697 -0400
+@@ -730,6 +730,7 @@
+   Colormap color_map;
+   XColor cdef;
+   XGCValues gcvals;
++  Atom wm_delete_window;
+   char *fontname = NULL;
+   char *widefontname = NULL;
+   int len;
+@@ -737,6 +738,7 @@
+ 
+   screen = DefaultScreen(display);
+   color_map = DefaultColormap(display,screen);
++  wm_delete_window = XInternAtom(display, "WM_DELETE_WINDOW", False);
+ 
+   (void) sprintf(option, "%s%s", program_name, ".foreground");
+   if (XrmGetResource(x_db, option, "Xtrs.Foreground", &type, &value)) {
+@@ -937,6 +939,7 @@
+   trs_fix_size(window, OrigWidth, OrigHeight);
+   XStoreName(display,window,title);
+   XSelectInput(display, window, EVENT_MASK);
++  XSetWMProtocols(display, window, &wm_delete_window, 1);
+ 
+   (void) sprintf(option, "%s%s", program_name, ".iconic"); 
+   if (XrmGetResource(x_db, option, "Xtrs.Iconic", &type, &value)) { 
+@@ -1002,6 +1005,7 @@
+     if (wait) {
+       XNextEvent(display, &event);
+     } else {
++      if (XCheckTypedEvent(display, ClientMessage, &event)) trs_exit();
+       if (!XCheckMaskEvent(display, ~0, &event)) return;
+     }
+ 

system/xtrs/xtrs.SlackBuild

@@ -7,6 +7,10 @@
 # There was no license on the original version. Modified version is
 # licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
 
+# 20230517 bkw: BUILD=4
+# - include patch from Jens Guenther (sdltrs upstream maintainer) to
+#   make the window close button work.
+
 # 20230418 bkw: BUILD=3
 # - new maintainer.
 # - use ROMs from trs80-roms package by default.
@@ -21,7 +25,7 @@ cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=xtrs
 VERSION=${VERSION:-4.9d}
-BUILD=${BUILD:-3}
+BUILD=${BUILD:-4}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -72,6 +76,10 @@ find . -type f -a -exec chmod 644 {} + -o \
 # - use correct app-defaults dir.
 patch -p1 < $CWD/sbo.diff
 
+# 20230517 bkw: Jens Guenther's "quick and dirty" patch to make the
+# windowmanager's close button work. Many thanks!
+patch -p1 < $CWD/window_close.diff
+
 # 20230418 bkw: the -laoss here allows xtrs to make sound via ALSA
 # or PulseAudio (via /etc/asound.conf).
 make DEBUG="$SLKCFLAGS" EXTRALIBS="-laoss"